Hmmm.  I disagree with some of this, but it's not important.  Basically, =
you need to identify the actual demarcation point.  It's not necessarily =
the NIU/Smartjack.  It could be three floors up terminated on a surface =
mount RJ48 type interface.  Looping up/back the NIU only tests the cable =
pairs to the NIU, no further.

The other point well made here is to get your vendor involved.

Cheers,

fhd

----- Original Message -----=20
From: "Gilbert T. Gutierrez, Jr." <plug@phxinternet.net>
To: <plug-discuss@lists.plug.phoenix.az.us>
Sent: Friday, January 09, 2004 11:39 AM
Subject: RE: Qwest T1


> > ----- Original Message -----=20
> > From: "Jim" <elemint@cox.net>
> > To: "PLUG" <plug-discuss@lists.plug.phoenix.az.us>
> > Sent: Wednesday, January 07, 2004 4:18 PM
> > Subject: Qwest T1
> >=20
> >=20
> > > I know this is a little OT.
> > >=20
> > > What is the best way to test a T1 extension. =20
> > >=20
> > > We have an extension on our T1 that we want to test, not sure if =
the
> > > problem is at the dmarc or within the extension of the T1.
> > >=20
> > > The T1 is extended by going through several 100 blocks
> > >=20
> > >=20
> > >=20
> > > Jim
> > >=20
>=20
> If you are having intermittent problems, the easiest way to eliminate =
the
> problems is to have your line vendor, whomever it might be, perform
> intrusive test on your line.  This is a 2 part process.
>=20
> 1. You want to ask them to loop up the NIU (Some companies call it the =
smart
> jack) from the CO.  This test tests to make sure that the line is good =
to
> the DMARC (your buildings main telephone room).
>=20
> 2. Next you want them to loop up your equipment from the CO and run =
test
> patterns to your equipment.  This will test your inside wiring (IW) =
and your
> equipment as one.  This does not distinguish between problems with =
your IW
> and router.
>=20
> * Both of these tests should be run for 30 minutes or more.
>=20
> If the second test comes back bad, you will need to test the IW and =
your
> equipment.  (This requires you to put a hard loop on the line at the =
DMARC
> pointing to your equipment and running test from the jack that your
> equipment is plugged into.  You would usually have your line vendor do =
this
> test as well.)
>=20
> Good Luck.
> Gilbert T. Gutierrez, Jr.
>=20
> ---
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>=20
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